* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    width: 100%;
    height: 100vh;
    background-color: #222;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-family: Arial, Helvetica, sans-serif;
}

.quiz-container {
    width: 350px;
    padding: 20px;
    background-color: #333;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
}
.quiz-container h1{
    text-decoration: underline;
}
.quiz-container p{
    margin: 10px 0px;
}

#question {
    font-size: 18px;
    margin-bottom: 15px;
}

.option {
    display: inline-block;
    background-color: #444;
    margin: 8px;
    padding: 10px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
}

.option:hover {
    background-color: #555;
}

.correct {
    background-color: green !important;
    ;
}

.wrong {
    background-color: red !important;
}

#nextbtn {
    width: 100%;
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #f39c12;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s ease-in-out;
}

#nextbtn:hover {
    background-color: #e67e22;
}

#results {
    font-size: 18px;
    margin-top: 15px;
}